Orr, D. W. (2002). The nature of design: Ecology, culture, and human intention. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Orr, David W. The Nature of Design: Ecology, Culture, and Human Intention. Oxford ; New York: Oxford University Press, 2002.
Lua MLA (9ú heag.)Orr, David W. The Nature of Design: Ecology, Culture, and Human Intention. Oxford University Press, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.